- Variety (US)"Maurice Costello"November 1, 1950 · pg. 63:1
- Los Angeles Mirror (US)"M. Costello, Film Veteran, Dies at 73"October 30, 1950 · Vol. 3, Iss. 17, pg. 3 · by: uncredited
- New York Times (US)"Maurice Costello Dies in Hollywood; Stage, Film Star, 73, Matinee Idol Early in the Century, Is Victim of Heart Ailment"October 30, 1950 · pg. 27:1
- Evening Star (Washington DC) (US)"Maurice Costello Dies at 73; Early Star of Films"October 30, 1950 · Vol. 98, Iss. 303, pg. A-12 · by: Associated Press
- Motion Picture Classic (US)"The Tragedy of Costello; The Past Creeps Up to Haunt the Favourite of Yesteryear, But He Still Carries On with a Smile"January 1928 · pg. 18-19, 78 · by: Ann Cummings
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